Rocking device.



G. W. GOODING. ROCKING DEVICE. APPLICATION FILED MAY 13, 1908.

923,509. Patented June 1, 1909.

PATFNT (EFFIC GEORGE WASHINGTON GOODING, OF SEATTLE, WASHINGTON.

ROCKING DEVIGE.

T all whom it may concern:

Be it known that I, GEORGE NAsinNGToN GOODING, a citizen of the UnitedStates, residing at Seattle, in the county of King and State ofWashington, have invented a new and useful Rocking Device, of which thefollowing is a clear and concise specification.

My invention relates to a rocking device for cradles in which theelements may be concealed from vision thus providing a device which maybe substantially inclosed and preventing the working parts thereof frombecoming damaged or broken.

My device also relates to a governing means for giving the cradle auniform motion while rocking to increase the efliciency of theconstruction of the device hereinafter more fully set forth.

The objects of my invention are to provide new and compact device toimpart a rocking motion to cradles; to provide a means for governing therocking device to cause uniformity in the motion of the cradle; toprovide a stopping and starting device for the motor. I accomplish theseas well as minor objects by the construction now preferred by me andillustrated in the accompanying drawings in which Figure 1 is a sectionof the cradle showing the disposition of my device; Fig. 2 is a bottomview of the governing toggle and parts operated thereby; Fig. 3 is aplan view of the preferred form of motor Fig. 4 is an elevation of themotor; Fig. 5 is a section of a modification of the cradle in which thereceiving part thereof is pivotally connected to the rockers; Fig. 6 isa diagrammatical view of the motor showing the extreme position oftravel.

Similar reference numerals refer to similar parts throughout the severalviews of my device as illustrated in the accompanying drawmgs.

I have provided a frame work 1 adapted to support the moving parts ofthe motor 2 which is preferably provided with a spring operated train ofgears comprising the main gear 3 journaled on the shaft 4 which isrigidly secured to the sprocket 5. The spring 6 is rigidly secured tosaid framework 1 and also to said shaft 1 thus driving said sprocket 5which engages the pawl 7 which is pivotally connected to said gear 3which intermeshes with the pinion 8 secured to the shaft 9 and whichdrives the gear 10 and pinion 11 secured to the shaft 12 which isSpecification of Letters Patent.

Application filed May 13, 1968.

Patented June 1, 1909.

Serial No. 132,70 1.

adapted to drive the gear 13 and pinion 14 secured to the shaft 15 andwhich is rigidly secured to the arm 16 having the weight 17 slidablymounted thereon and connected to the link 18 which is secured to thetoggle 19 operating the friction members 20 and 21 which grip thestationary projection 22 whicn is rigidly secured to the framework 1.Said weight 17 is restricted from radial travel due to centrifugal forceby means of the spring 23 secured thereto and to the guide member 2awhich is slidably adjusted relative to the arm 16 by a screw 25regulating the tension. of said spring 23; thus it is obvious that byovercoming said spring, as

the velocity of said weight increases, the

toggle operates and applies frictional resist ance to the stationaryprojection 22. To stop said arm from rotating I have provided a checkingdevice 26 comprising a spring 2. engaging the under surface of said arm16 prior to striking the stop 23 which is pivotally and slidably mountedon said framework 1 by the slot 29 and screw 30 which also serves tohold said spring 26 in position. Said stop is relieved by a spring 31which compresses by reason of the kinetic energy of said weight 17. Thenit is desired to permit the motor to run, said checking device is swungto the position indicated by dotted lines in Fig. 3 by pulling on therod 32 which is accessible from the exterior of the cradle.

The cradle may be advantageously constructed by providing a bottom piece33 to which the motor 2 is secured and a horizontal partition 34 whichacts as the floor of the cradle and also protects the motor. The endwalls 35 and 36 are secured to said bottom piece 33 and horizontalpartition 34. It is obvious that by having the side walls rigidlysecured to the inner walls which are continued downwardly to form therockers 39 and 10 if a weight is placed to one side of the cradle unlessthe motor is made sufficiently large the cradle will not rock uniformly.In Fig. 5 I have shown the bed 411 pivotally mounted to said end walls35 and 36, thus the weight will always be uniformly distributed relativeto the rockers 39 and 40 and will be centered on the pivot 42. EX-periment has proved that the governing of the revolutions of the weightis necessary to obtain the best results as the rockers when out at acertain radius will eiiiciently rock the cradle at a certain number ofreciprocations per minute, the larger the radius the fewer movements ofthe cradle. When the governor is adjusted to substantially the samenumber of revolutions relative to the movement of the cradle theefficiency of the motor is considerably increased. It has also beennoted that the cradle will have a tendency to govern the velocity of theweight but however, an additional governing means is necessary to givesatisfactory results and in numerous models which have been made theproportioning of the radius of the rockers to the motor when properlyadjusted will rock weights in the cradle which are large relative to theweight of the motor and by winding the spring the cradle will rock morethan half an hour with substantially the train of gearing illustrated inthe accompanying drawings. I do not wish to be limited however, to thespecific construction illustrated in the accompanying drawings andherein set forth, but wish to depart from such details as are within thescope of my invention.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent of the United States, is:

1. In a cradle rocking device, a motor, and a weight rotatably driventhereby to cause the cradle to rock.

2. In a cradle rocking device, a motor, a weight rotatably driventhereby tocause the cradle to rock, and means for governing the speed ofsaid weight to increase the efliciency of the motor.

3. In a cradle rocking device, a motor, a

weight rotatably driven thereby to cause the cradle to rock, means forgoverning the speed of said weight to increase the efficiency of themotor, and means for stopping and starting the motor.

4-. In a cradle rocking device, a motor, a Weight rotatably driventhereby to cause the cradle to rock, means for governing the speed ofsaid weight to increase the efiiciency of the motor, a stopping deviceand means for preventing a sudden jar due to the kinetic energy of theweight.

5. In a rocking device for cradles, a rotatably mounted weight means forrevolving said weight, and a cradle supporting said weight, saidrevolving means and rockers having a radius adapted to rock the cradleat a fixed relation with the revolutions of said weight.

6. In a rocking device for cradles, a rotatably mounted weight means forrevolving said weight, a cradle supporting said weight, said revolvingmeans and rockers having a radius adapted to rock the cradle at a fixedrelation with the revolutions of said weight, and a stopping andstarting mechanism adapted to operate on said weight.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

GEORGE WASHINGTON GOUDING.

vVitnesses PAUL A. TALBOT, B. BROWN.

